Bug 1731371: Remove REQUIRES_UNIFIED_BUILD declaration from layout subdirectories that don't need it. r=emilio

Differential Revision: https://phabricator.services.mozilla.com/D126014

layout/base/gtest/moz.build

@@ -28,5 +28,3 @@ if CONFIG["CC_TYPE"] == "clang":
     CXXFLAGS += ["-Wno-null-dereference"]
 
 FINAL_LIBRARY = "xul-gtest"
-
-REQUIRES_UNIFIED_BUILD = True

layout/build/moz.build

@@ -77,5 +77,3 @@ FINAL_LIBRARY = "xul"
 
 if CONFIG["CC_TYPE"] in ("clang", "gcc"):
     CXXFLAGS += ["-Wno-error=shadow"]
-
-REQUIRES_UNIFIED_BUILD = True

layout/inspector/moz.build

@@ -38,5 +38,3 @@ LOCAL_INCLUDES += [
     "../style",
     "/dom/base",
 ]
-
-REQUIRES_UNIFIED_BUILD = True

layout/style/test/gtest/moz.build

@@ -22,5 +22,3 @@ GeneratedFile(
 )
 
 FINAL_LIBRARY = "xul-gtest"
-
-REQUIRES_UNIFIED_BUILD = True

layout/tools/layout-debug/src/moz.build

@@ -22,5 +22,3 @@ XPCOM_MANIFESTS += [
 include("/ipc/chromium/chromium-config.mozbuild")
 
 FINAL_LIBRARY = "xul"
-
-REQUIRES_UNIFIED_BUILD = True

layout/xul/tree/moz.build

@@ -47,5 +47,3 @@ LOCAL_INCLUDES += [
 
 if CONFIG["CC_TYPE"] in ("clang", "gcc"):
     CXXFLAGS += ["-Wno-error=shadow"]
-
-REQUIRES_UNIFIED_BUILD = True